baber/WOPTO huggingface dataset:
Patent GB-986919-A (GB)
Title: A method and means for the part load operation or starting-up of forced flow, once through steam boilers
IPC: F22B35/10
Filed: 1963-06-05
Abstract: 986,919. Forced flow steam boilers. A. C. PRICE. (Durrwerke A.G.). June 5, 1963, No. 22431/63. Heading F4A. A method for the part load operation or the starting-up of a forced flow, once through boiler which may operate at supercritical pressure and in which the boiler system is divided by a shut-off valve with a parallelconnected control valve into two heating surface groups in series, comprises conveying steam leaving the first group partly to the second group and partly to a recirculating pump via a cooler wherein it is condensed by injection of feed water, the pump returning the water to the first heating group whereby the flow velocity in the tubes thereof is maintained at a safe value. In the apparatus shown, a pump 1 supplies feedwater through a regulator 3 and orifice 5 to the boiler which comprises a preheater 6, evaporator 7, collector 8, shut-off valve 9, separator 12, primary and secondary superheaters 13, 14 and steam valve 15. During normal operation the valves 9 and 15 are open. During part load operation the valve 9 is closed dividing the boiler system into two heating surface groups 6, 7 and 13, 14 which are connected by a by-pass line 37 having a control valve 10, this valve being regulated to maintain a constant pressure in the group 6, 7. Steam not discharged to the second group 13, 14 flows through a recirculation line 20 and non-return valve 21 into a mixing header 22 wherein it meets a spray of feedwater flowing through a line 26, the quantity of water being regulated by a valve 27 to ensure that all the steam is condensed and that the spray water and condensate leave the header 22 at about 20‹ C. below saturation temperature to enter a circulating pump 23 which delivers the water through a regulator valve 25 into the feed line to the boiler. Water not discharged into the feed line is recirculated to the pump suction line through a pipe 38 controlled by a valve 24. The boiler can be started up using the recirculation system alone or in the normal way using starting lines 16, 18 and can be operated at low loads by imposing sufficient recirculation on the throughflow in the heating group 6, 7 to ensure that the flow velocity does not fall below a predetermined value.
Patent GB-498246-A (GB)
Title: Improvements in process and apparatus for electrostatic separation of particles
IPC: B03C7/00
Filed: 1937-08-16
Abstract: 498,246. Electrostatic separators. INTERNATIONAL TITANIUM, Ltd. Aug. 16, 1937, No. 22494. Convention date, Aug. 24, 1936. [Class 72] In the separation of particles, such as rutile and zircon sands, which differ in their ability to receive electrical charges, the particles are passed through an electrostatic separator and the moisture content of the atmosphere of the zone of separation or electrostatic field is controlled so that it is below a predetermined maximum, i.e. a relative humidity of less than 40 per cent, a preferred humidity being less than 34 per cent. The separator or zone of separation is located in a chamber not above ordinary room temperature and the humidity of the atmosphere is controlled by removing part of its normal moisture content. The electrostatic separator is enclosed in a room 1 and comprises a rotary electrode 3 and a fixed electrode 5, the material being fed on to the roller 3 from a hopper 2 and the material adhering to the roller 3 being removed by a scraper 4. A divider 6 directs the separated materials into receptacles 7, 8. The moisture content of the air is controlled by forcing the air of the room by means of a fan through screens 10 covered with calcium chloride 11 and contained in a casing 9.
Patent GB-433499-A (GB)
Title: A tea or coffee service
IPC: C09B29/16
Filed: 1934-08-01
Abstract: 433,499. Drinking-vessels. ROMMLER AKT.-GES., H., Spremberg, Neider-Lausitz, Germany. Aug. 1, 1934, No. 22502. Convention date, Aug. 10, 1933. [Class 128] [See also Group XVII] In order to facilitate the packing of tea and coffee sets, the tea or coffee pot a is flared outwardly towards the top, and the cups bare rested in the bottom thereof. The cups are of the type having handles f which do not contact with the cup below. A cream jug c and sugar basin d are of the same general shape as the cups, and are nested with them. The saucers g are inverted and arranged above the lid e of the sugar basin, and the whole is secured by a lid h, which may be held in place by clamping members.
Patent GB-1138170-A (GB)
Title: Electron gun assembly means and methods
Inventor: MERCHANT CHESTER O
IPC: H01J9/18
Filed: 1967-05-15
Abstract: 1,138,170. Making electrical components; jointing. KENTUCKY ELECTRONICS Inc. 15 May, 1967 [10 June, 1966], No. 22508/67. Headings B3A and B3V. A jig for assembling three-beam electron guns, e.g. colour tubes, comprises three stems 36 located between two platforms 32, 33 so as to converge with the desired convergence for the beam-axes, the stems fitting the insides of successive members of the beam electrodes and being removed therefrom in the direction of their axes to permit removal of the completed three-beam gun from the jig. As applied to assembling guns in which the electrodes include control grids 18, 19, Fig. 2, a focusing section 21 and an acceleration anode 22, each having a bracket 23, the jig holds the assembled gun as softened glass beads 14, 15, 16, Fig. 3, are applied laterally to the brackets 33 to secure the assembly. The stems 36 of the jig are in two parts, the lower parts having pins 49, Fig. 6, locating the grid-sections 18, 19 and engaging a base in the upper parts 47 which bear in the platform 32. With the lower stems resting on bars 39 engaging resilient supports, the electrode sections are assembled. Rods 41 ,  41<SP>1</SP>,  42 <SP>11</SP> ,  slidable in posts 30, 31, project spacers 42 between adjacent sections and carry arms 44 for locating the brackets 23. The upper platform 32 is secured by levers 37 to the tops of the posts 30, 31, and the top stem-sections are forced down by spring-pressure on camoperated levers 50. With the gun assembled the jig is transferred to a beading device. Beading device.-The jig-posts 30, 31 may be clamped, Fig. 15 (not shown), on a top-plate 101 of the device or located in holes 112, Fig. 9. Three suction-holders 134 for the beads 133 and associated gas heaters 106, supplied with gas and oxygen, are mounted on the plate 101. Beneath the plate is a pneumatic actuator 122, Fig. 10, for simultaneously advancing the softened beads 133 and swinging aside the gas heaters. The actuator rotates a star-wheel 123 having links linked at 127 to levers 111 for turning shafts 110 supporting the heaters and limbs 125 linked at 116 to slides 119 carrying the bead holders 134. After applying the beads, the upper parts 47 of the stems are withdrawn, the platform 32 is removed and the bars 39 are withdrawn, allowing the remainder of the stems to fall on to a base platform 40 and the completed gun to be removed. A control circuit is described in which an automatic cycle is initiated by a start button and may be overridden by further switches. In a modification, Figs. 13 and 14 (not shown), the lower stems are held rigidly by levers (164).
Patent GB-588725-A (GB)
Title: Process for the production of polymeric materials
IPC: C08F8/00
Filed: 1944-11-15
Abstract: Interpolymers of styrene and maleic acid and/or alkali metal salts of maleic acid are prepared by interpolymerizing a mixture of styrene with a half ester of maleic acid and an aliphatic monohydric alcohol in the presence of a peroxy compound and subjecting the product to hydrolysing conditions.  Specified alcohols are methanol, ethanol, butanol, propanol, isopropanol, isobutanol, octanol, dodecanol, methoxyethanol, methallyl alcohol, oleyl alcohol, ethylene chlorohydrin, dimethylamino - ethanol and 2 - nitro - propanol, while alkanols of 1 to 4 carbon atoms are preferred.  The reaction may be carried out in a hydrocarbon solvent, e.g. benzene, xylene or toluene using an organic peroxide catalyst such as benzoyl, lauroyl or diethyl peroxide, or in aqueous emulsion using water-soluble salts of inorganic peroxy acids, e.g. ammonium or potassium persulphate and potassium percarbonate, as catalyst.  The molecular ratio of styrene to the ester is usually 1 : 1 although this may range, e.g. from 0.5 to 10 mols. styrene to one mol. ester.  Preferred temperatures are from 50 DEG  to 150 DEG  C.  The hydrolysis may be carried out using aqueous alkali, e.g. sodium or potassium hydroxide, or aqueous acid. The products are useful as tanning agents and, where used in admixture with hydroxyl containing polymers, e.g. partially hydrolysed polyvinyl acetate, as adhesives.  In examples, styrene and monomethyl hydrogen maleate are interpolymerized in (1) xylene solution with benzoyl peroxide and then hydrolysed with sodium hydroxide; (2) xylene solution with benzoyl peroxide; (3) aqueous solution of the sodium salt of the chlorosulphonate of white oil, ammonium persulphate and sodium bisulphite.  Specification 535,475 is referred to.
Patent GB-510640-A (GB)
Title: Improvements relating to alloys
IPC: C22C5/04
Filed: 1938-07-30
Abstract: 510,640. Alloys. BAKER & CO., INC. July 30, 1938, No. 22749. Convention date, Jan. 29. [Class 82 (i)] An alloy suitable for jewellery, pen-nibs, electric contacts, resistance wires, spinnerets and dental appliances consists of ruthenium, copper and at least 50 per cent. of palladium. The alloy preferably contains 80-98 per cent. of palladium with equal amounts of ruthenium and copper, or the content of latter may be 0.5-15 per cent.
Patent GB-740728-A (GB)
Title: Improvements in or relating to a hood latch mechanism
IPC: E05B65/19
Filed: 1953-08-18
Abstract: 740,728. Latch fastenings; hinges. BASSICK CO. Aug. 18, 1953 [Aug. 27, 1952], No. 22760/53. Classes 44 and 65 (2). Mechanism for latching a swinging lid, e.g. of an engine hood, to a fixed part includes a keeper 31 on the fixed part, a mounting-plate 27 fixed to the side of the lid, a spindle 54 mounted for turning movement in the mounting plate, and a swinging detent arm 30 operatively connected to the spindle for rotation about an axis between the ends of the detent arm and adapted to engage and disengage the keeper, the .detent arm comprising relatively slidable partsconsisting of a stem 58 and a frame 57 mounting the stem and an interposed spring 67, the spring being held under compression in the latched position of the lid. The stem 58 has a hook end 63 for engaging the keeper 31. The spindle 54 is carried by a lever 42, which is fixed to a spindle 28 so as to move with it when the spindle is rotated by an operating handle 29, the spindle 28 being journalled in the mounting plate 27. When the hook is disengaged from the keeper the parts are in the position shown in Fig. 8 in which the lever 42 is engaging a stop 48 on the mounting plate and the frame 57 has its upper end engaging a stop 68 on the mounting plate and its intermediate part.resting on a stop 51 on the lever 42. Rotating the handle 29 anticlockwise causes the lever 42 to rotate, the initial movement of this lever allowing the hook to engage under the keeper 31. Further movement of the lever compresses the spring 67 as the spindle 54 of the frame 57 is moved away from the keeper until the pivot-pin 54 passes the plane through the axis of the spindle 28 after which the spring is progressively released until the lever 42 engages a stop 47. The lever 42, frame 57 and the stem 58 thus form a toggle which positively locks the hook in the keeper. Reverse movement of the handle 29 disengages the hook from the keeper. Free movement of the lever 42 is restrained by a blade-spring 49 cut from the mounting plate. The mounting plate 27 is L-shaped, the lower limb being apertured to pass over the keeper 31 and its forward. end having a lip 39 which engages a V-shaped recess 35a in the plate 33 on which the keeper 31 is mounted so that the mounting plate 27 is positively located with respect to the plate 33. The plate 33 is part of a hinge so that when two fasteners are used one on each side of a vehicle bonnet, the bonnet can pivot on one side when the other side is unlatched. In a modification the keeper may be mounted on a fixed plate.
Patent GB-710083-A (GB)
Title: Improvements in or relating to outboard motors for watercraft
Inventor: DAVIES VICTOR NORMAN
IPC: B63H20/14
Filed: 1950-09-18
Abstract: 710,083. Friction clutches. SOUTHEND ENGINEERING CO., Ltd. Nov. 29, 1951 [Sept. 18, 1950], No. 22896/50. Class 80 (2) [Also in Groups XXVII, XXVIII and XXXIII] A friction clutch for an outboard motor (see Group XXXIII) comprises a drum 92 secured to the engine crankshaft 29, and a disc 95 carrying a pair of friction shoes 93, 94 and secured to the transmission shaft 88. The shoes are pivoted on balls 98, 99, Fig. 9, and ;are pressed outwardly to engage the drum, against the action of a spring 105, by a cam 108 secured to an operating lever 110. The latter is actuated by a ball 112, mounted in a radial hole 114 of the transmmission shaft, which is pressed outwardly by the end 124 of a push rod 115 slidable in an axial bore of the transmission shaft and actuated through a collar 116 by a manually operated lever 121.
Patent GB-1049853-A (GB)
Title: Improvements in or relating to oscillation generators
Inventor: HICKS RONALD ARTHUR
IPC: H03L7/113
Filed: 1962-06-14
Abstract: 1,049,853. Variable frequency oscillation. PLESSEY CO. Ltd. Sept. 12, 1963 [June 14, 1962], No. 22898/62. Heading H3A. In a variable frequency oscillation generator including an A.F.C. system, of the type described in Specification 1,024,427, in which a coarse frequency control arrangement including means for altering the reactance presented by a switchable reactor unit to the oscillator frequency determining circuit, and a fine frequency control including a phase comparator, are provided, the coarse control is modified to include a switchable series of capacitors having values proportioned to the power series of 2. The circuit up to the output from gates 14, 15 is identical to that described in Specification 1,024,427 and provides on line 16 a number of pulses proportional to the difference in frequency between the reference pulses derived from the fixed divider 2 and those derived from the controlled oscillator via variable divider 6. A signal is also provided on line 26 indicative of the sign of the error. The pulses on line 16 are applied to a 12-stage stepping register 23 and the first pulse to arrive operates the first stage of the register which provides an output pulse to switch bi-stable circuit 24(1) to a state in which it opens transistor gate 21(1) and connects capacitor 20(1) in the oscillator frequency determining circuit. If on arrival of the second pulse the error is in the same direction capacitor 20(1) remains in circuit and the second pulse switches capacitor 20(2) into the circuit, however if after the addition of capacitor 20(1) the sense of the error changes the signal on line 26 changes and opens the gates 25 whereby the second pulse in addition to switching capacitor 20(2) into circuit also switches bi-stable circuit 24(1) back to its initial state and removes capacitor 20(1) from the circuit. The capacitors 20(1) &c. have values proportional to a descending power series of 2.
Patent GB-1239943-A (GB)
Title: Improvements in roller shutters
Inventor: ROSS-SEYMOUR ANTHONY EDWYNNE
IPC: E06B9/15
Filed: 1968-10-29
Abstract: 1,239,943. Roller shutters. COLORASTIC Ltd. 28 Oct., 1969 [29 Oct., 1968; 6 May, 1969], Nos. 51216/68 and 23017/69. Heading E1J. A roller shutter is constructed from laths A extruded from a plastics material, each lath comprising a hollow body a divided by partition walls a<SP>1</SP> into longitudinal compartments a<SP>2</SP> and having projecting arcuate flanges a<SP>3</SP> on each longitudinal edge for interengagement of the laths A as shown. Reinforcing members C or heat or sound insulating material may be inserted in the compartments a<SP>2</SP>. The laths are prevented from sliding apart by T-shaped or L-shaped or two-legged clips B each comprising a leg or legs insertable in compartments a<SP>2</SP> and a head extending transversely over part of the end of the lath and the adjacent joint between flanges a<SP>3</SP>. The clip B may be of spring metal with two legs or one zig-zag leg, or of plastics material with one serrated leg, to hold the clip resiliently in place. The heads of plastics clips B may provide guides for the shutter in a runway. A handle D is attached to the end lath by screwing into a wooden strip d inserted in a compartment.
Patent GB-627387-A (GB)
Title: Improvements in or relating to a machine for harvesting potatoes and other root crops
IPC: A01D19/16
Filed: 1947-08-19
Abstract: 627,387. Root crop harvesting. BENTLEY, S. C., POMERANCE, I., and GLOBE: HARVESTER CO., Ltd. Aug. 19, 1947, Nos. 23036 and 26474. [Class 6(iii)] A root-crop harvesting machine includes one or more inclined rotary riddles comprising discs 5 having radiating fingers 6, the fingers being vertically displaceable as the disc rotates through cooperation with a camring 37, Fig. 3. The machine is towed by a tractor which drives the discs through a jointed shaft 33, a gear box 13, and a longitudinal drive shaft 17 carrying bevel wheels 18. Shares 7, 8 deliver earth and tubers to the riddles through which the earth falls, the tubers and stones being passed rearwardly to a conveyer 27 which is divided into sections by longitudinal partitions 63, 64. The crop is delivered to the central section and the tubers are manually transferred to the outer sections, by operators sitting on benches 68, from which the tubers pass to bags. The fingers 6 are pivoted to the disc and have hook-like inner ends 59 which partially embrace a cam-ring 37 mounted eccentrically with respect to the axle 42 of the disc. The fingers thus extend parallel to the disc at the receiving, point, but hang downwardly at the discharge point. The cam-ring is free to rotate. Specification 607,847 is referred to.
Patent GB-257414-A (GB)
Title: Improvements in two-revolution printing presses
IPC: B41F3/02
Filed: 1925-09-16
Abstract: 257,414. Bohn & Herber Maschinenfabrik und Eisengiesserei, and Finkhaus, O. Sept. 16, 1925. Cylinder and like machines; bed-reciprocating apparatus.-In a two-revolution printing-press of the kind in which the motion of the reciprocating bed 2, Fig. 7, is reversed at the ends of the stroke by means of rollers 12 on a continuouslyrotating arm 10 and engaging guides on the bed, the frame 1 carrying the bed 2 has each end shaped like a box with an open side. The box is constituted by a vertical web b, Figs. 5 and 8, side walls c, d, top surface e, and bottom surface a, and the frame 1 is completed by a bar f connecting the two boxes at the top and by a bar g and webs h, i connecting the boxes at the bottom. A continuously-rotating gearwheel 6, splined to the shaft 11 carrying the arm 10, is moved along the shaft 11 by cam mechanism 8 so as to engage alternately racks 3, 4 on the bars f, g respectively and thus reciprocate the bed. As the gearwheel 6 reaches the end of the rack 4 on the movement of the bed 2 to the right, Fig. 7, the rollers 12 on the arm 10 enter a guide channel formed by a track on the side wheel c co-operating with a similar track on a pivoted member 13, Fig. 8, which is moved into position by a roller 15 carried thereby, and running in fixed cam-grooves. The rollers 12 and arm 10 drive the bed 2 for the next half-revolution of the shaft 11, gradually decreasing its motion and then reversing it. The gear-wheel 6 is now moved axially by the mechanism 8 so as to engage the rack 3. Similar mechanism is employed for reversing the movement of the bed at the opposite end of its stroke.
Patent GB-364580-A (GB)
Title: Improvements in radio receiving apparatus
IPC: H03G3/14
Filed: 1930-07-31
Abstract: 364,580. Wireless receiving systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, KINMAN, T. H., Ladbroke, Bilton, Rugby. July 31, 1930, No. 23122. [Class 40 (v).] A variable coupling arrangement between two circuits one of which is tuned, provides for the tuning and damping of the latter to remain fixed bv the inclusion of a third balancing circuit having substantially identical constants with the former circuit and a differential coupling between the tuned circuit and the other circuits. In one embodiment the coupling between the tuned circuit LC, Fig. 1, and the aerial A is varied by the diferential condenser C1, C2 inversely as the coupling to the circuit containing a resistance R2 or such inductances and resistances as to give it the same constants as the aerial circuit. In another example the coil L of the tuned circuit LC is variably coupled to the aerial coil La and inversely to the coil Ll of a circuit L1, C1, r1 having the same constants as the aerial circuit, the coils La and L1 being arranged at right-angles to avoid coupling between them.
Patent GB-1103865-A (GB)
Title: Reprographic process
IPC: G03F7/28
Filed: 1965-12-29
Abstract: 1,103,865. Photographic process. KEUFFEL & ESSER. Dec. 29, 1965 [Dec. 30, 1964], No.23306/67. Divided out of 1, 103, 864. Heading G2C. Photographic images are formed by imagewise exposing a material comprising a supported layer of a normally non-dustable and non-thermally transferable diazonium compound, optionally dispersed in a resin binder, heating the material, and then applying a powder developer to the layer so that it adheres to the exposed areas thereof. In a modification, the exposed diazonium layer is heated whilst in contact with a receiving sheet (e. g. of paper) to transfer a stratum of the exposed areas of the layer to the sheet, powder developer is adhered to the transferred stratum; by successively contacting the exposed material with a plurality of receiving sheets, a plurality of copies may be obtained. The supports, binders and diazonium compounds described in Specification 1,103,864 may be used. The developer may be a pigment (e. g. TiO 2 , PbSO 4 ), a hectographic dye in a resin binder, or an oleophilic ink receptor. The developed image may be fixed by heat or solvent vapour. Colour images may be prepared from colour separation negatives using coloured developers.
Patent GB-425001-A (GB)
Title: Improvements in or relating to water softening
IPC: C11D3/06
Filed: 1933-05-25
Abstract: Sodium hexa-metaphosphate containing a small amount of pyrophosphate for use in softening water is obtained by adding a small quantity of sodium carbonate, to fused monosodium-dihydrogen-orthophosphate and rapidly cooling the mixture.  Specifications 364,746, [Group XVIII], 378,345, 424,677, and 424,959 are referred to.ALSO:Water is softened by treatment with a hexametaphosphate of an alkali metal or ammonium, the salt or a solution thereof being added to the water, preferably in an amount at least equal to four formula equivalents of the calcium and magnesium present in the water.  Sodium hexametaphosphate containing a small amount of pyro-phosphate is preferably used.  The pyrophosphate neutralizes the slight acidity of the metaphosphate. Small quantities of other substances such as caustic soda, sodium carbonate, sodium sesquicarbonate, borax, trisodium phosphate and sodium metasilicate may also be added to counteract acidity.  The hexa-metaphosphate may also be mixed with sodium bicarbonate or disodium phosphate which substances constitute buffering agents to prevent too great acidity or alkalinity.  A suitable mixture of metaphosphate and pyrophosphate may be obtained by adding a small amount of sodium carbonate to fused mono-sodium dihydrogen orthophosphate and rapidly cooling the mixture.  The treated water is stated to be specially useful in laundry processes on account of its property of dissolving calcium soaps.  Specifications 364,746, 378,345, 424,677, [Group XVIII], and 424,959 are referred to.  The Specification as open to inspection under Sect. 91 described also the application of the process in connection with the prevention or dissolution of deposits in the feed lines of boilers and hot water distributing systems.  This subject-matter does not appear in the Specification as accepted.